*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #0b0e14;
            color: #e8edf2;
            line-height: 1.75;
            padding: 0;
            margin: 0;
        }
        a {
            color: #f5a623;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #ffc857;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
            color: #f0f4fa;
        }
        h1 {
            font-size: 2.4rem;
            margin-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            border-left: 5px solid #f5a623;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            margin: 1.6rem 0 0.8rem;
            color: #f5a623;
        }
        h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.6rem;
            color: #cfddee;
        }
        p {
            margin-bottom: 1.2rem;
            color: #d0d8e2;
        }
        ul,
        ol {
            margin: 0 0 1.5rem 1.8rem;
            color: #d0d8e2;
        }
        li {
            margin-bottom: 0.4rem;
        }
        strong,
        b {
            color: #f5f9ff;
            font-weight: 700;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: #11171f;
            border-bottom: 2px solid #2a3545;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(6px);
            background: rgba(11, 14, 20, 0.96);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f5a623, #ff7b00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none !important;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #f5a623;
            margin-right: 6px;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #3a4a5a;
            color: #e8edf2;
            font-size: 1.5rem;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .hamburger:hover {
            background: #2a3545;
        }
        nav {
            display: flex;
            gap: 1.2rem 2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            font-weight: 500;
            font-size: 0.95rem;
            color: #c8d2df;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        nav a:hover {
            border-bottom-color: #f5a623;
            color: #fff;
            text-decoration: none;
        }
        .nav-cta {
            background: #f5a623;
            color: #0b0e14 !important;
            padding: 0.4rem 1.2rem !important;
            border-radius: 30px;
            font-weight: 700;
            border-bottom: none !important;
        }
        .nav-cta:hover {
            background: #ffc857;
            color: #0b0e14 !important;
        }
        .breadcrumb {
            padding: 1rem 0 0.2rem;
            font-size: 0.85rem;
            color: #8899aa;
        }
        .breadcrumb a {
            color: #8899aa;
        }
        .breadcrumb a:hover {
            color: #f5a623;
        }
        .breadcrumb span {
            color: #f5a623;
        }
        .hero {
            padding: 2rem 0 1.5rem;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.8rem;
            background: linear-gradient(135deg, #f5a623, #ff7b00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero .meta {
            color: #7a8a9a;
            font-size: 0.95rem;
            margin-top: 0.4rem;
        }
        .hero .meta i {
            margin: 0 4px;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0 3rem;
        }
        .main-article {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
            background: #141c26;
            border-radius: 16px;
            padding: 1.6rem 1.4rem;
            border: 1px solid #2a3545;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 1rem;
            border-left: 3px solid #f5a623;
            padding-left: 0.8rem;
        }
        .sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #1f2a36;
        }
        .sidebar ul li a {
            color: #b0c0d0;
            font-size: 0.9rem;
        }
        .sidebar ul li a:hover {
            color: #f5a623;
        }
        .feature-img {
            margin: 1.8rem 0;
            border-radius: 14px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
        }
        .feature-img figcaption {
            font-size: 0.85rem;
            color: #7a8a9a;
            text-align: center;
            margin-top: 0.5rem;
        }
        .search-box {
            background: #141c26;
            padding: 1.5rem 1.8rem;
            border-radius: 16px;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
            margin: 2rem 0;
            border: 1px solid #2a3545;
        }
        .search-box label {
            font-weight: 600;
            color: #f0f4fa;
            font-size: 1.05rem;
        }
        .search-box input {
            flex: 1 1 220px;
            padding: 0.7rem 1.2rem;
            border-radius: 30px;
            border: 1px solid #3a4a5a;
            background: #0b0e14;
            color: #e8edf2;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
        }
        .search-box input:focus {
            border-color: #f5a623;
            box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.2);
        }
        .search-box button {
            background: #f5a623;
            color: #0b0e14;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-box button:hover {
            background: #ffc857;
            transform: scale(1.02);
        }
        .interaction-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0;
        }
        .card {
            background: #141c26;
            border-radius: 16px;
            padding: 1.6rem 1.8rem;
            border: 1px solid #2a3545;
        }
        .card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            border-left: 3px solid #f5a623;
            padding-left: 0.8rem;
        }
        .card textarea,
        .card input,
        .card select {
            width: 100%;
            padding: 0.7rem 1rem;
            border-radius: 10px;
            border: 1px solid #3a4a5a;
            background: #0b0e14;
            color: #e8edf2;
            font-size: 0.9rem;
            margin-bottom: 0.8rem;
            outline: none;
            transition: 0.2s;
            font-family: inherit;
        }
        .card textarea:focus,
        .card input:focus,
        .card select:focus {
            border-color: #f5a623;
        }
        .card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .card button {
            background: #f5a623;
            color: #0b0e14;
            border: none;
            padding: 0.6rem 1.6rem;
            border-radius: 30px;
            font-weight: 700;
            cursor: pointer;
            transition: 0.2s;
            font-size: 0.9rem;
        }
        .card button:hover {
            background: #ffc857;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.6rem;
            color: #4a5a6a;
            cursor: pointer;
            margin-bottom: 0.8rem;
        }
        .rating-stars i.active {
            color: #f5a623;
        }
        .rating-stars i:hover {
            color: #f5a623;
        }
        friend-link {
            display: block;
            padding: 1.8rem 0;
            border-top: 2px solid #2a3545;
            margin-top: 2.5rem;
        }
        friend-link h3 {
            font-size: 1.1rem;
            margin-bottom: 1rem;
            color: #f0f4fa;
        }
        friend-link ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 2rem;
        }
        friend-link ul li a {
            color: #b0c0d0;
            font-size: 0.9rem;
        }
        friend-link ul li a:hover {
            color: #f5a623;
        }
        footer {
            background: #0a0e14;
            border-top: 1px solid #1f2a36;
            padding: 2rem 0 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: #6a7a8a;
        }
        footer .copyright {
            margin-top: 0.8rem;
        }
        footer a {
            color: #6a7a8a;
        }
        footer a:hover {
            color: #f5a623;
        }
        .schema-hidden {
            display: none;
        }
        @media (max-width: 820px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                margin-top: 2rem;
            }
            .interaction-panel {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 0.6rem;
                padding: 1rem 0 0.4rem;
            }
            nav.show {
                display: flex;
            }
            nav a {
                width: 100%;
                padding: 0.5rem 0;
                border-bottom: 1px solid #1f2a36;
            }
            .nav-cta {
                width: auto;
                align-self: flex-start;
            }
            .search-box {
                flex-direction: column;
                align-items: stretch;
            }
            .search-box button {
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .card {
                padding: 1.2rem;
            }
        }
        .tag {
            display: inline-block;
            background: #1f2a36;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-size: 0.75rem;
            color: #b0c0d0;
            margin-right: 0.4rem;
        }
        .divider {
            height: 1px;
            background: #2a3545;
            margin: 2rem 0;
        }
        .highlight {
            background: rgba(245, 166, 35, 0.12);
            padding: 0.1rem 0.3rem;
            border-radius: 4px;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        th,
        td {
            padding: 0.7rem 0.8rem;
            text-align: left;
            border-bottom: 1px solid #2a3545;
        }
        th {
            background: #1a2532;
            color: #f5a623;
            font-weight: 700;
        }
        td {
            color: #c8d2df;
        }
        .blockquote {
            border-left: 4px solid #f5a623;
            padding: 0.8rem 1.2rem;
            margin: 1.5rem 0;
            background: #101821;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #c8d2df;
        }